@@ -135,10 +135,12 @@
 #import "OFSystemInfo.h"
 #import "OFLocale.h"
 #import "OFOptionsParser.h"
 #import "OFTimer.h"
 #import "OFRunLoop.h"
+
+#import "OFMatrix4x4.h"
 
 #ifdef OF_WINDOWS
 # import "OFWindowsRegistryKey.h"
 #endif